Structure in differential cross sections for electron-impact ionization of Li{sup +}(1s{sup 2}) in the coplanar equal-energy-sharing geometry
- Department of Physics, Shanxi Teachers University, Linfen, Shanxi 041004 (China)
The triple-differential cross section for electron-impact ionization of a Li{sup +}(1s{sup 2}) ion is considered in the coplanar equal-energy-sharing kinematics at an incident energy of 135.6 eV. The emergence of structures in the calculated cross sections is explained in terms of isolated two-body final-state interactions and three-body coupling. The cross section shows two peaks originating from 'classical' sequential two-body collisions. The position of these peaks is determined by two-body final-state interactions. In addition, it is demonstrated that the signature of three-body interactions is carried by the magnitude and ratio of these two peaks. The direct and exchange amplitudes are also considered.
- OSTI ID:
- 20632445
- Journal Information:
- Physical Review. A, Vol. 66, Issue 6; Other Information: DOI: 10.1103/PhysRevA.66.062708; (c) 2002 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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